Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun One who authenticates.
  • noun A feature that shows something to be authentic.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun one who determines authenticity (as of works of art) or who guarantees validity

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

authenticate +‎ -or

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